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tolo
searching PlanetScale…
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by
tolo
15y ago
And also the surface area of a spherical zone, as shown here: http://mathworld.wolfram.com/Zone.html
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by
tolo
15y ago
I'm not sure if I'm missing something, but I get a much simpler answer. Surface area of a spherical cap is 2 pi R h, with h = R - r. Divided by the total surface area (4 pi R^2), gives (R-r)/(2 R)